Apparatus for producing and multiplying relievos after pictures.



G.ERD BRI]GGER. APPARATUS FOR monncme AND MULTIPLYING n'spmvos AFTERncwmma,

APPLICATION rum) arm. 19, 1901. 925,468. Patented June 22, 1909.

'3 SHEETS-SHEET 1.

G. ERDBR'UGGER. APPARATUS FOR PRODUCING AND MULTIPLYING RELIEVOS AFTERPICTURES.

APPLICATION FILED SEPT. 19, 1907.

925,468. Patented Julie 22, 1909. 3SHEETS-SHBET 2.

no: NORRIS PETERS ca. viasnmcralv. n. c,

I G. ERDBRI IGGER. APPARATUS FOR PRODUCING AND MULTIPLYING RELIEVOSAFTER PICTURES.

APPLICATION FILED SEPT. 19, 1907.

Patented June 22, 1909'.

' 3 SHEETSSHEET 3.

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UNETE GUSTAV ERDBRUGGEH, Ol." EPPSlElN'GE [til IA.

NY, ASSIGNOH TO 11E aria NN SEOKENDORFF,

O F HAN ()VE It, GE R H A N Y.

rrerruzans.

T 0 all whom "it may concern:

Be it known that I, GUSTAV Ennnntieenn, civil engineer, a subject of theling of Prussia, residing at Villa Stolzenfels, Eppstein, German Empire,have invented a new and useful Apparatus for Producing and MultiplyingRelieves After Pictures, of which the following is a specification.

This invention relates to an apparatus for producing relieves, by whichany picture can e changed into a relieve without distorting the pictureand by which the relieve can be multiplied by using the negative of there lieve as a matrice.

The process consists in transferring the picture to a paper which whenit is damp can be greatly stretched. Upon the back of the paper ispoured a plastic and rapidly hard ening mass and the paper is thenmolded into a relieve from the front side. In consequence of the greatextensibility of the paper the distortions of round surfaces, which areunavoidable with the other processes, are here avoided and the relieveretains the correct proportions. I achieve this object by the mechanismillustrated in the accompanying drawings, in which Figure 1 is avertical section of the molding box and the receptacle for the hardeningmass, l igs. 2 and 3 are longitudinal and a cross-section of the.molding box, respectively, Fig. l, is a front view of the picture, Fig.5, is an end view of the picture, Fig. 6 is a front elevation, ofanother form of melding appliance, Fig. 7 a cross section, of the deviceshown in Fig. 6, Fig. 8 a plan view of the multiplying device, 9 aplan-view of the press-plate, Fig. 10 is a side view of the matrice withits frame. Figs. 1]. and 12 show, in front-elevation and a plan-view,the connections of several molding devices.

The plastic mass used for pouring behind the relieve is a compositionboiled together of ground slate, porcelain earth, white lead a fibrousmaterial like hemp-tow, animal glue and water. hen heated it is thicklyliquid or viscid and becomes as hard as stone when exposed to the air.

Upon a table are placed the receptacles 1 and 2. The former serves tohold the mass, and is closed by the lid 3, which has severalperforations for letting the air through.

The receptacle 2, which stands on the same level with the receptacle 1,is the moldingbox. It stands in communication through a Specification ofLetters Patent.

Application filed September 19, 1907.

Patented June 22, 1909.

Serial No. 393,682.

i tube 4, which is preferably of earthen-ware,

with the receptacle 1, and can be closed at the bottom b r a slide 5.The tube 4 runs through a tub with hot water fastened on the table whichkeeps the mass in a viscid state and is heated by a spirit flame. Themolding-box 2, as shown in Figs. 2 and 3, consists of a solid bottompart and a top part 7 which moves in the bottom part, the upper part isclosed by a frame 8, on which is fastened the picture to be treated.

Below the frame 8 is a slide 9 sharpened like a knife, which is of thewidth of the box. By a number of springs 10, which engage cross-bars 11,the upper box 7 is held in its highest position.

In order to produce the relieve the picture is first transferred uponpaper which when moistened can be greatly stretched, then a pattern iscut out of wood, sheet metal, or 75 the like, which corresponds exactlyto the silhouette of the picture, and on this the elastic paper isstretched out in such a man ner that the pattern accurately correspondswith the outlines of the silhouette on the picture. The picture iscoated on the back with a hot fluid, preferably glycerin, and softenedthereby It is then placed into the frame 8 and the receptacles 1 and 2are filled so far that the mass ascends up to the lower edge of theframe 8. On the receptacle 1 is provided a scale 12 which shows theheight or level of the mass. When the receptacle 2 is quite filled theslide 5 is closed and the upper box 7 is pressed into the bottom boxuntil the extensible paper, as shown in Fig. 5, bulges out in the freespace of the pattern. The upper box is then retained in its position,for which an adjusting device may be used and the slide 9 is advanced,so that its sharp edge cuts off the mass filling the silhouette. Now theframe 8 is taken'off the box 7, and the desired relieve is given to thepicture by a careful treatment on the front side with a suitableinstrument. The mass hardens during the work, so that the pictureretains the form given to it. If the picture is finished, the box 7 isbrought again into its highest position and the slide 5 is opened, sothat the mass assumes the same level in both receptacles.

After the relieve is finished a matrice is formed which serves toproduce large quantities. hen the relieve has become sufficiently hard amatrice of plaster or the like can be formed from it for producing anylarge number of casts. This is done by placing a piece of paper, beingthe same as used for producing the original relievos and very extensiblein a damp state into the matrice and pouring the described mass upon it.Thereupon a great pressure is exerted. upon the mass, and it is thenallowed to harden. For this purpose the device illustrated in Figs. 612is used. In a table 13 are placed the matrices 14 in strong metal plates15. Over them, in grooves 16 slides the moldingbox 17 with the handles18. One side 27 of the box can preferably be turned up for cleaning it.The paper is fastened in a frame 19 similar to the above describedframes 8, which exactly fits into the metal plates 15, and is at onelevel with their upper edge. plate 21 slides in grooves of the box 1.7.The plate has a slide 22 of the same size as the pictures of whichrelievos are to be made. The box 17 is closed at the top by a lid 23through which a screw 24 goes to the pressplate 25. The latter is, asshown in Fig. 9, provided with lids 26, 26. After the paper in the frame19 has been placed in one of the matrices the box 17 is through the lids26 of the press-plate 25, filled with heated mass and passed over thematrice, so that the frame 21 lies exactly on the frame 19. I/Vhen theslide 22 is opened the mass flows over the back of the picture and isstrongly pressed by the screw 24 and plate 25. Now the slide 22 isadvanced and the mass lying below it is cut off. The box 17 is closed bythe slide 22 and the other matrice may be advanced while the picturehardens in the first. The box is preferably made of such size that withone charge it can remain in action for about one hour.

Figs. 11 and 12 show a combination of several multiplying apparatus. Themolding-box 28 with the press plate moves in grooves 30 of the plate 31over the matrices 32. In Fig. 12 there are supposed to be two rows ofmatrices of which one is visible, while the molding box 28 covers theother. As several matrices are arranged here and the pressing-surface istherefore larger than in the case of only one matrice the pressplate 29is, in order to attain a uniform pressure, provided, besides the screw33, with two pressing bows 34 which are at the top connected by a plate35. To the screw 33 is fastened a disk 35 with handles 36 which transmitthe pressure of the screw to the bows 34. The press-plate is, as abovedescribed, provided with lids 37 for filling in the mass and withlateral tightening strips 38. The box 39 of the matrice is rigidlyconnected with the bottom part 31. The several matrices are separated bycross-pieces Close above the frame 19 a brass 14 between which thepicture frames 41 are placed. The molding box 28 is closed at the bottomby the brassplate 12 with the slide 43 which both are exactly similar tothe above described parts 21 and 22. The working of the device isexactly the same as that of the one illustrated in Figs. 610. Any numberof matrices may be arranged in a row and any number of rows of picturesmay be laced into the track of the molding box. l aving now particularlydescribed and ascertained the nature of my said invention and in whatmanner the same is to be performed I declare, that what I claim is:

1. In an apparatus for producing relievos from pictures, a molding box,a storage receptacle, and a tube connecting said box and receptacle.

2. In an apparatus for producing relievos from pictures, a molding box,a movable cover on said box for receiving a picture to be treated, astorage receptacle for the producing mass and a heated tube connectingsaid box and receptacle.

3. In an apparatus for producing relievos from pictures, a molding boxhaving a movable cover for receiving the picture to be treated, astorage receptacle for the producing mass, said receptacle and box beingin heated communication anda slide with a knife edge carried by themovable part of the box.

4. Apparatus for distending extensible sheets com arising in combinationmeans for applying p astic substance under pressure against one surfaceof said sheet and a stencil applied to the other surface of said sheet.

5. Apparatus for distending extensible sheets comprising in combinationmeans for applying plastic substance under pressure against one surfaceof said sheet and a stencil for limiting the area of the sheet subjectto extension under pressure.

6. Apparatus for distending extensible sheets comprising incombinationmeans for applying plastic substance in bulk under pressure to onesurface of said sheet, and means for supportin the other surface of saidsheet against sai pressure in a configuration according to the reliefdesired.

7. Apparatus for distending extensible sheets com rising in combinationmeans for applying p astic substance under pressure against one surfaceof said sheet and a stencil applied to the other surface of said sheettogether with a slide for severing the plastic substance in a plane)arallel to said stencil.

In witness whereof T have signed this specification in the presence oftwo witnesses.

GUSTAV ERDBRUGGER.

\Vitnesses:

JEAN GRUND, CARL GRUND.

